diff --git a/templates/rbmd/index.html b/templates/rbmd/index.html
index d772208..e66547e 100644
--- a/templates/rbmd/index.html
+++ b/templates/rbmd/index.html
@@ -85,11 +85,11 @@
   </body>
   <script>
     var ws = new WebSocket('{{escape(ws)}}');
-    var cluster, selected_node, deadNode, node2;
+    var a, selected_node, deadNode, node2;
     ws.onopen = function() {ws.send(""); };
     ws.onmessage = function (evt) {
-      cluster = JSON.parse(evt.data);
-      displayData(cluster);
+      a = JSON.parse(evt.data);
+      displayData(a);
     };
     //
     // $('#mountForm').submit(function(event){